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Spring 2007

Concrete Pump Attachment Exceeds Expectations



Gus Antoniou

Gus Antoniou

Aconcrete pump attachment is allowing G & D Excavating to save time, labor and money. Contractor Gus Antoniou and his operators now have more control over the delivery and placement of the concrete and, perhaps most important, they appreciate the convenience the attachment offers.

Having a great relationship with his local dealership, Atlas Bobcat, and trusting the brand is what led Antoniou to the Bobcat® concrete pump attachment. After purchasing the unique attachment, Antoniou quickly learned how valuable the concrete pump was to his business.

Antoniou owns seven Bobcat skid-steer loaders and has more than 25 years of experience in the construction industry, working for G & D Excavating Excavating—a general contractor and home developer based in Lyons, Ill.

Difficult job
Antoniou knows how difficult it can be to place concrete in confined spaces. He says that while a concrete pumper might be the fastest way to deliver material, sometimes it simply won’t work. He says hiring a concrete pumper is becoming increasingly expensive and isn’t necessarily the best method for delivering the material to his crews. “A concrete pumper will charge anywhere from $600 to $1,500 a day,” Antoniou says.

Size limitations also prohibit Antoniou from using a concrete pumper on some jobs. That’s why the company pours concrete floors, mezzanines and crawl spaces with a concrete pump attachment and S300 skid-steer loader. There’s no waiting for the concrete pumper to arrive, which means crews can set their own schedules as long as they know when the concrete producers will deliver the material.

The concrete pump attachment is powered by the skid-steer loader’s hydraulic system that offers the ability to pump 12 to 15 cu. yd. an hour. With a high-flow auxiliary hydraulic system, the pump attachment can reach up to 25 cu. yd. an hour. Depending on hose length and diameter, and conditions such as slump, additives and aggregate size and type, the attachment can pump concrete as far as 250 ft. horizontally or two stories vertically. The pump’s maximum aggregate size is 1.5 in.

Jobsite success
One day Antoniou needed to place approximately 50 cu. yd. of concrete for a floor in the second story of a new warehouse in Chicago. He knew a conventional concrete pumper wouldn’t work because of the jobsite conditions and where the concrete needed to be placed. He teamed his Bobcat S300 skid-steer loader and concrete pump attachment to tackle the project. The loader and pump attachment were conveniently positioned inside the building with room for the concrete mixers to deliver the material directly into the pump.

“You wouldn’t believe how well the concrete pump attachment worked,” Antoniou says. “It was more convenient to use when we placed the material because we could control the speed. We didn’t get big surges in concrete. We got a steady, constant flow of concrete, and that’s the key to this attachment.

“The concrete pump attachment gives the laborers and finishers the right amount of time to place the material,” he adds. “They don’t get overburdened with material like they would if it was coming from a concrete pumper.”

Bobcat concrete pump

The Bobcat concrete pump paid for itself after just three jobs for G & D Excavating.

Quickly paid for itself
Because the pump’s performance allowed him to meet his deadlines, Antoniou says the concrete pump attachment paid for itself after just three jobs. “You can’t put a value on being able to service your customers,” he says.

A dedicated concrete pump on a trailer would simply sit idle once it was finished, whereas Antoniou’s loaders are disconnected from the pump attachment and stay busy.

Another advantage of the pump attachment is its ability to be easily transported from jobsite to jobsite on a trailer. Additionally, contractors can do away with mud buggies, wheelbarrows and shovels or chutes when they use a concrete pump attachment.